Patents by Inventor Thien V. Nguyen

Thien V. Nguyen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7419167
    Abstract: A sled device for permitting transportation of a person and cargo over a variety of surfaces includes a sled including a bottom wall and a perimeter wall that extends upwardly from the bottom wall to define a receiving space of the sled to receive the person and cargo. The bottom wall is slidable along a soft support surface. A front wheel assembly is rotatably coupled to the sled and is rotatable between a deployed position and a stowed position. The front wheel assembly engages and rolls along a hard support surface when the front wheel assembly is in the deployed position. A plurality of rear wheel assemblies is pivotally coupled to the sled and each is pivotable between a lowered position and a raised position. The rear wheel assemblies engage and roll along the hard support surface when the rear wheel assemblies are in the lowered position.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: September 2, 2008
    Inventor: Thien V. Nguyen